Watch RADIANT english dubbed Episode 1 at AnimeKisa. Title : Watch RADIANT Episode 1 English Dubbed. Description : The story follows Seth, a boy who seeks to become a great magician, and a group of witches who seek to travel to the Radiant. Radiant is a mythical land that spawns monsters called "Nemesis" which fall to the world from the sky. While traveling, they are also hunted by The Inquisition.